Trunk comparison: BMW 3 Series Touring vs Opel Grandland

Key Differences (highlighted: >10%)

When comparing trunk dimensions, four differences stand out: The BMW 3 Series Touring offers a cargo space length that is 4.3 in (12%) longer with the first row seats upright than the Opel Grandland.

The Opel, on the other hand, has a trunk opening that is 3.5 in (13%) higher, a depth from the loading edge to the trunk floor that is 5.9 in (1500%) greater, and a loading edge height over the road that is 7.1 in (30%) higher than the BMW.

Impact on Usability

The 12% longer cargo floor of the BMW with the rear seats upright makes it better suited for long items (e.g., skis, long boards, furniture panels) when the rear seats are not folded down. The slight length advantage with folded seats (only 4%) is negligible.

The Opel offers more usable interior height and vertical volume due to the higher trunk opening and especially the significantly greater depth from the loading edge to the trunk floor — advantageous for bulky, tall, or voluminous cargo.

However, the 7.1 in higher loading edge makes loading more difficult: heavier items must be lifted higher or loaded using ramps/aids. For everyday use (groceries, suitcases, strollers), the lower loading edge of the BMW is more ergonomic.

Other Differences (under 10%)

Width differences are small: the width at the narrowest point and the width of the opening are 6% and 8% larger on the Opel — noticeable but not dramatic. The total trunk length with folded seats differs by only 4% in favor of the BMW.